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Roasted Flat Mushrooms with Green Onion, Thyme and Butter

Roasted mushrooms topped with green herb butter and thyme on a plate.
Roasted mushrooms with green onion and thyme butter.

Large mushrooms roast under a generous layer of softened butter, green onion, parsley and thyme until tender and full of herb flavor.

By Cookin' Kitchen

  • Total: 40 minutes
  • Servings: 4 servings

Recipe

Roasted Flat Mushrooms with Green Onion, Thyme and Butter

Large mushrooms roast under a generous layer of softened butter, green onion, parsley and thyme until tender and full of herb flavor.

Cookin' · https://cookin.club/recipes/roasted-flat-mushrooms-with-green-onion-thyme-and-butter

Prep
10 minutes
Cook
30 minutes
Total
40 minutes
Servings
4

Ingredients

4 servings

For 4 servings

Mushrooms

Herb and green onion butter

Optional garnishes

Equipment

  • Oven
  • Medium bowl
  • Large tray
  • Foil
  • Platter

Instructions

  1. Step 1: Clean the mushrooms; see the notes for cleaning guidance.

  2. Step 2: Preheat the oven to 200°C / 390°F (180°C fan).

  3. Step 3: Mix the herb and green onion butter ingredients together in a medium bowl.

    Green herb butter mixed in a bowl with a spoon.
  4. Step 4: Place the mushrooms gill-side up on a large tray. Spread the butter mixture over the mushroom surfaces. Cover with foil to help preserve the herbs’ green color.

  5. Step 5: Bake for 25 minutes, until the mushrooms are tender.

  6. Step 6: Arrange the mushrooms on a platter with all the butter and juices from the tray. Scatter the thyme stalks and extra scallions over the mushrooms, then serve.

    A fork lifting a roasted mushroom topped with herbs and green onion.

Notes

Use any type of large mushroom that can hold the butter. Clean away dirt with a cloth or paper towel, or use a pastry brush to reach crevices. The gills are edible; if you prefer to remove them, scoop them out gently with a spoon. Trim a long stem level with the edge of the mushroom, or snap it off.

Store fresh mushrooms in a breathable bag, such as a brown paper bag, or wrapped in a tea towel. Plastic bags and containers can trap moisture.

Nutrition per serving

Calories
230 kcal
Fat
21 g
Saturated fat
13 g
Carbohydrates
10 g
Sugar
5 g
Fiber
3 g
Protein
5 g
Sodium
462 mg
Cholesterol
54 mg

Estimated values; they will vary with the exact ingredients and brands you use.

About this recipe

Roast large flat mushrooms with a rich butter mixed with green onion, parsley and thyme. The mushrooms cook gill-side up, letting the herb butter settle into their caps.

Several roasted mushrooms covered with green herb butter on a tray.
Roasted mushrooms on a tray with green onion and thyme butter.

Serve them as a vegetarian main for 3–4 people, or as a starter or side for 6–8.

Mushrooms, parsley, thyme, butter and green onions arranged as ingredients.
The mushrooms, herbs, butter and green onions used in the recipe.

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